He pūhui ngota ngota teitei kore-ionic te cellulose ether, he wairewa-wai, he wairewa-whakarewa hoki. He rerekē ngā pānga o tēnei ki ngā ahumahi rerekē. Hei tauira, i roto i ngā rauemi hanga matū, e whai ake nei ngā pānga hiato:
①Kai pupuri wai ②Whakamātotoru ③Āhuatanga whakataurite ④Āhuatanga hanga kiriata ⑤Kaihere
I roto i te umanga polyvinyl chloride, he emulsifier me te dispersant; i roto i te umanga rongoā, he mea here me te rauemi anga tuku puhoi me te whakahaere, me ētahi atu. Nā te mea he maha ngā pānga hiato o te cellulose, ko tōna whakamahinga he whānui rawa atu hoki. Ko te kaupapa e whai ake nei e arotahi ana ki te whakamahinga me te mahi a te cellulose ether i roto i ngā momo rauemi hanga.
(1) I roto i te peita rapa:
I roto i te umanga peita rapa, hei whiriwhiri i te hydroxyethyl cellulose, ko te whakatakotoranga whānui o te matotoru ōrite ko RT30000-50000cps, e rite ana ki te whakatakotoranga o HBR250, ā, ko te horopeta tohutoro he 1.5‰-2‰ te nuinga. Ko te mahi matua o te hydroxyethyl i roto i te peita rapa ko te whakamātotoru, te aukati i te whakapiri o te tae, te āwhina i te marara o te tae, te pumau o te rapa, me te whakanui ake i te matotoru o ngā wāhanga, e whai wāhi ana ki te mahi whakataurite o te hanganga: He watea ake te whakamahi i te Hydroxyethyl cellulose. Ka taea te whakarewa ki te wai matao me te wai wera, ā, kāore e pāngia e te uara pH. Ka taea te whakamahi haumaru i waenga i te uara PI 2 me te 12. Ko ngā tikanga whakamahi koia ēnei:
I. Tāpirihia tika ki te hanga: me whiriwhiri tēnei tikanga i te momo whakaroa hydroxyethyl cellulose, me te hydroxyethyl cellulose me te wā whakarewa neke atu i te 30 meneti, ko ngā mahi whakamahi e whai ake nei:
①Whakaritea he nui o te wai parakore ki roto i tētahi ipu me te mīhini whakaoho kutikuti-teitei
②Tīmata ki te whakaoho tonu i te tere puhoi, ā, i te wā kotahi, tāpirihia mārire te hydroxyethyl ki te otinga kia ōrite.
③Me whakaoho tonu kia mākū katoa ngā rauemi kirikiri
④ Tāpirihia ētahi atu tāpiringa me ngā tāpiringa taketake, me ētahi atu.
⑤ Whakaohokia kia memeha rawa ngā rōpū hydroxyethyl katoa, kātahi ka tāpirihia ētahi atu wāhanga ki te ranunga, ka huri kia oti ra ano te hanga.
Ⅱ. Kua rite ki te wai whaea mō te whakamahinga ā muri ake nei: Ka taea e tēnei tikanga te whiriwhiri i te cellulose inamata, he pānga ārai-haruru. Ko te painga o tēnei tikanga he nui ake tōna ngāwari, ā, ka taea te tāpiri tika ki te peita rapa. He rite tonu te tikanga whakarite ki ngā mahi ①-④.
Ⅲ. Whakaritea te parāoa mō te whakamahinga ā muri ake nei: Nā te mea he ngoikore ngā whakarewa rauropi (kāore e rewa) mō te hydroxyethyl, ka taea te whakamahi i ēnei whakarewa hei whakarite parāoa. Ko ngā whakarewa rauropi e whakamahia whānuitia ana ko ngā wai rauropi i roto i ngā hanganga peita rapa, pērā i te ethylene glycol, te propylene glycol, me ngā kaihanga kiriata (pērā i te diethylene glycol butyl acetate). Ka taea te tāpiri tika i te parāoa hydroxyethyl cellulose ki te peita. Me whakaoho tonu kia memeha rawa.
(2) I roto i te putty waru pakitara:
I tēnei wā, i te nuinga o ngā tāone o tōku whenua, ko te putty ātete-wai, ātete-horoi hoki, he mea nui ki te tangata. Ka puta mai i te tauhohenga acetal o te waipiro vinyl me te formaldehyde. Nō reira, ka āta tangohia tēnei rauemi e te tangata, ā, ka whakamahia ngā hua raupapa cellulose ether hei whakakapi i tēnei rauemi. Arā, mō te whakawhanake i ngā rauemi hanga whare ā-taiao, ko te cellulose anake te rauemi i tēnei wā.
I roto i te putty ātete-wai, ka wehea kia rua ngā momo: te putty paura maroke me te whakapiri putty. I roto i ēnei momo putty e rua, me whiriwhiri te methyl cellulose whakarerekētia me te hydroxypropyl methyl. Ko te whakatakotoranga matotoru kei waenganui i te 30000-60000cps. Ko ngā mahi matua o te cellulose i roto i te putty ko te pupuri wai, te here me te whakahinuhinu. Nā te mea he rerekē ngā tauira putty o ngā kaihanga rerekē, ko ētahi he konupūmā hina, he konupūmā māmā, he sima mā, me ētahi atu, ko ētahi he paura gypsum, he konupūmā hina, he konupūmā māmā, nō reira he rerekē anō ngā whakatakotoranga, te matotoru me te urunga o te cellulose i roto i ngā tauira e rua. Ko te nui i tāpirihia he 2‰-3‰ pea. I roto i te hanganga o te putty waru pakitara, nā te mea he taumata mimiti wai te mata o raro o te pakitara (ko te tere mimiti wai o te pakitara pereki he 13%, ā, ko te tere mimiti wai o te raima he 3-5%), me te mimiti o te ao o waho, ki te tere rawa te ngaro o te wai i roto i te putty, ka puta he pakaru, he tango paura rānei, ka ngoikore ai te kaha o te putty. Nō reira, mā te tāpiri i te cellulose ether ka ea tēnei raruraru. Engari he mea tino nui hoki te kounga o te whakakī, inā koa te kounga o te pungarehu konupūmā.
Nā te matotoru nui o te cellulose, ka piki ake te pūmau o te putty, ā, ka karohia hoki te āhuatanga whakaheke i te wā hanga, ā, he pai ake, he penapena mahi hoki i muri i te waru. He watea ake te tāpiri i te cellulose ether ki te putty paura. He watea ake te hanga me te whakamahi. Ka taea te whakaranu i te whakakī me ngā tāpiringa ki te paura maroke.
(3) Te moata raima:
I roto i te moata raima, kia eke ki te kaha tino teitei, me tino makuku te sima. Ina koa i te hanganga raumati, ka tere rawa te ngaro o te wai o te moata raima, ā, ka whakamahia ngā mehua o te makuku katoa hei pupuri me te tauhiuhi i te wai. He moumou rauemi me te koretake o te mahi, ko te mea nui ko te wai kei runga noa i te mata, ā, kāore anō kia oti te makuku o roto, nō reira ko te otinga ki tēnei raruraru ko te tāpiri i ngā kaihoko pupuri wai e waru ki te moata raima, ko te tikanga he whiriwhiri i te hydroxypropyl methyl, te methyl Cellulose rānei, ko te whakatakotoranga matotoru kei waenga i te 20000-60000cps, ā, ko te nui o te tāpiri he 2%-3%. Ka taea te whakanui ake i te tere pupuri wai ki te neke atu i te 85%. Ko te tikanga whakamahi i roto i te moata raima ko te whakaranu i te paura maroke kia ōrite, ka ringihia ki roto i te wai.
(4) I roto i te paninga ki te gypsum, te gypsum piri, te gypsum whakapiri:
I te tere o te whanaketanga o te umanga hanga, kei te piki haere hoki te hiahia o te tangata mō ngā rauemi hanga hou i ia rā, i ia rā. Nā te pikinga ake o te mōhiotanga o te tangata ki te tiaki taiao me te whakapai tonu i te whai huatanga o te hanga, kua tere te whanaketanga o ngā hua gypsum sima. I tēnei wā, ko ngā hua gypsum tino noa ko te gypsum parai, te gypsum here, te gypsum whakairo, me te piripiri taera. He rauemi parai kounga teitei te gypsum parai mō ngā pakitara me ngā tuanui o roto. He pai, he maeneene hoki te mata o te pakitara i paraitia ki a ia. Ko te piripiri papa rama whare hou he rauemi piri i hangaia ki te gypsum hei rauemi turanga me ngā momo tāpiri. He pai mō te here i waenga i ngā rauemi pakitara hanga kore-waro. Kāore he paitini, kāore he kakara, he wawe te kaha me te tere o te whakatakoto, he kaha te here me ētahi atu āhuatanga, he rauemi tautoko mō ngā papa hanga me te hanganga poraka; ko te kaihoko whakapiri gypsum he whakakī āputa i waenga i ngā papa gypsum me te whakakī whakatika mō ngā pakitara me ngā kapiti.
He maha ngā mahi a ēnei hua gypsum. Haunga te mahi a te gypsum me ngā whakakī e pā ana, ko te take matua ko te mahi matua a ngā tāpiringa cellulose ether. Nā te mea kua wehea te gypsum ki te gypsum waikore me te gypsum hemihydrate, he rerekē ngā pānga o ngā gypsum rerekē ki te mahi a te hua, nō reira ko te matotoru, te pupuri wai me te whakaroa ka whakatau i te kounga o ngā rauemi hanga gypsum. Ko te raruraru noa o ēnei rauemi ko te poka me te ngatata, ā, kāore e taea te whakatutuki i te kaha tuatahi. Hei whakaoti i tēnei raruraru, me whiriwhiri te momo cellulose me te tikanga whakamahi matū o te whakaroa. I tēnei whakaaro, ko te methyl, ko te hydroxypropyl methyl 30000 rānei te mea e whiriwhiria whānuitia ana. –60000cps, ko te nui o te tāpiri he 1.5%–2%. I roto i ēnei, ko te cellulose e aro ana ki te pupuri wai me te whakaroa i te hinu whakahinuhinu. Heoi, kāore e taea te whakawhirinaki ki te cellulose ether hei whakaroa, ā, me tāpiri he whakaroa waikawa citric ki te whakaranu me te whakamahi me te kore e pā ki te kaha tuatahi.
Ko te pupuri wai e pā ana ki te nui o te wai ka ngaro noa iho me te kore e mimiti wai mai i waho. Mēnā he maroke rawa te pakitara, ka tere rawa te mimiti wai me te mimiti noa i te mata o te turanga, ā, ka puta hoki he kōhao me te ngatata. Ka konatunatua tēnei tikanga whakamahi ki te paura maroke. Mēnā ka whakarite koe i tētahi otinga, tirohia te tikanga whakarite o te otinga.
(5) Moata whakamahana wera
He momo rauemi ārai pakitara o roto hou te moata whakamātao i te rohe raki. He rauemi pakitara i hangaia mā te rauemi ārai, te moata me te here. I roto i tēnei rauemi, he mahi nui te cellulose ki te hono me te whakanui ake i te kaha. Ko te tikanga he whiriwhiri i te methyl cellulose he matotoru teitei (tata ki te 10000eps), ko te horopeta i waenga i te 2‰-3‰), ā, ko te tikanga whakamahi he whakaranu paura maroke.
(6) kaihoko atanga
Kōwhiria te HPNC 20000cps mō te kaihoko atanga, whiriwhiria te 60000cps, neke atu rānei, mō te piripiri taera, ā, arotahi ki te whakamātotoru i roto i te kaihoko atanga, ka taea te whakapai ake i te kaha kume me te kaha ārai-pere. Whakamahia hei kaihoko pupuri wai i roto i te here o ngā taera hei ārai i ngā taera kei maroke wawe rawa, kei taka atu rānei.
Te wā tuku: 16-Pepuere-2023